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The four data model basic building blocks include: Entity, Attribute, Relationship and Constraint. Identify and discuss four basic data model building blocks that are found in the following scenario: "Each user can have many accounts. Each account is linked to only one user. Users have a unique email for their username and a password. The username and password cannot be left blank." Your answer should include the following for each building block: • Name and identify the building block (e.g. Entity: describe from from scenario) • Briefly give a definition for the building block.

The four data model basic building blocks include: Entity, Attribute, Relationship and Constraint. Identify and discuss four basic data model building blocks that are found in the following scenario: "Each user can have many accounts. Each account is linked to only one user. Users have a unique email for their username and a password. The username and password cannot be left blank." Your answer should include the following for each building block: • Name and identify the building block (e.g. Entity: describe from from scenario) • Briefly give a definition for the building block.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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The four data model basic building blocks include: Entity, Attribute, Relationship and Constraint. Identify and discuss four basic data model building blocks that are found in the following scenario: "Each user can have many accounts. Each account is linked to only one user. Users have a unique email for their username and a password. The username and password cannot be left blank." Your answer should include the following for each building block: • Name and identify the building block (e.g. Entity: describe from from scenario) • Briefly give a definition for the building block.
Transcribed Image Text:The four data model basic building blocks include: Entity, Attribute, Relationship and Constraint. Identify and discuss four basic data model building blocks that are found in the following scenario: "Each user can have many accounts. Each account is linked to only one user. Users have a unique email for their username and a password. The username and password cannot be left blank." Your answer should include the following for each building block: • Name and identify the building block (e.g. Entity: describe from from scenario) • Briefly give a definition for the building block.
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